Fixture for mounting electric warp stop motions



E. C. SMITH FIG 5 F194 March 19, 1935. 1,994,594

FIXTURE FOR MOUNTING ELECTRIC WARP STOP MOTIONS Filed Sept. 23, 1931 2 Sheets-Sheet l I I l l l 4 1 l J Fl G I Z6 INHJTRU 57 a FIG 8 xxx W4:

March 19, 1935. E. c. SMITH 5 FIXTURE FOR MOUNTING ELECTRIC WARP STOP MOTIONS Filed Sept. 25, 1931 2 Sheets-Sheet 2 I." \II. II,

Patented Mar. 19, 1935 My invention relates to warp stopi-motionsf orlooms, and particularly-to-electrical warp stop motions/. Specifically it isa' holder for mounting the contact bars or electrodes of an electricaLWar-p r stop motion.

The objects "of my 'inventionare to provide a; holder of sectional construction that can be ex' panded-or it contracted in its numericalcapacity to accommodate different numbers of electrodes; to

'providea means-for supporting-or mounting theholder, which supporting means can be varied position relative to-the-other component parts of; the holder to accommodate the point; of mounting on the loom-and 'yie-ld maximum range of adjust l5 ment-forthe holder; and toprovide "means for compensating-the accumulated variationsand errorsgthat-are --incident to aggregating numerousabutting elements such as make up my improved holder.

? I-attain these objects-by the-means and-.-ar-

rangements-of means shown by the accompanying drawings inwhich i p :1 is a plan view of my invention as adapted for holdingiour; electrodes; 7 V 7 Fig z is an elevation-of the same viewed in-the direction-indicated by the arrow a,- Fig; 1;

Fig 3 list a detail of the base -section 2-;

E 4 vis adetail ot the extension-section 3;

Fig.5 is adetail-of the binder-section i; I Figs. 6 and -'I showalternative structures of the base-sections p v v 7 Fig. 8 shows an alternative tightening means for the -draw-bolt 5,-- and alternative thrust con structiong p Fig. 9'shows a modification of -the binder-sectionrto hold round outsiderods or -lease -rods--, and also thrust rod insectional form; and

FigslO, 11' and'12 show different arrangements andlocations ofithe base-section -in-the assembledholder. pp i V 7 Similar numerals refer to similar-parts through-' outthe severalviews and the'speci-ficationz V V the iollowing; specificationthe assembled device -willzbe -termed holder. The contact or: detectory'lbars -will bel termed; electrodes The components of the-holder which are brought to I bear upon the" electrodestoclampthem will be known in general as sections. The difierent types ofsection will be known by specific names:

* base sectionh extension section and bindersection 7 Figs.- 1 and 2 show '-the holder-as composed of five sections; the base-section 2, two "extension sections-3 and two binder-sections 4. 'I'heexten-- 53* sion-sections :-3-andthe-binder-sections-4-: are

'20 in each of the birider-sectionsA-LL order mounted onthe base-sectionZ and secured thereto by-the draw-bolt 5; Resting upon the boltfi 7 are the-eleetrodesfi. By tighteningone or both of the nuts 7, the sections are "drawn together by thebolt, clamping betweenthem theeleetrodes 6. 5

The base-sectional consists ot a bodyB'and supporting means whereby the holder is-mountedc-in; the-100m: This supporting means Figs-l and:3;- ispreferably a hub 9,-formedwith{a-hole 100i; either cylindricalor noncylindrical forms A usual; mounting in the 100m comprises a :post- 11,- Fig.1; which-issecured-byany one of well=knownmear1s to the loom sides The range of location for-this post is often limited and this limitation has distinct bearingupon my invention as will be shown later, The post 11 carriesanflangle iron -12-which' is secured to the post by the set-screw 13; One arm'of this angle iron enters the hole 10 of "the hub 9, The base-section-lwith its other attached sections can be-mo-ved along the angleiron arm and can be secured at any desired positiontheren e s e r 4-. a

The faoe s 15 .15 -to the'planes of which the hole l0 is perpendicular, constitute abutments againstfwhich liethe electrodes 6-6- supported* by 5 d w-b v H ,t

Each of theextension-sections 3+3 'has two faces 16- -1Q corresponding to the faces 15 15 and each lgindersection has one oorrespondingi face l7. Eachsectio rhas a hole perpendicular to said faces and parallel to the hole '16 in-base-section 2-=to receive the draw-bolt 5 to wit} the hole 18;inthe base-section 2 the hole- -19 in; each-oi the-two; extension-sections- 3 -32 and the hole 35'- to insure parallelism of' the-clampingiaces 15,- 16 nd and t e r ir-b ar oni n amp d. electrodes; 6, it is desirable that the faces" 17 1' Z of the binder-sectionsi 4 .7 be maintained sub-- stant-ially paral1el-.- is particularly-vtrue where the-holder comprises man-y isections as in dicatedin -Fim 1-2. PrQVisi n-mrinsuring: such p ral l -10 the a e ie-: 1 h thrust rod 22 which carried-by the; base-section 2 a hole; 2 3; and extends through the-holes24 in--;-e ach- 0f; the extension-sections 3--3-,' whichholes-are axially line with the hole-234 11 the base-section2. Each of 'the binder-sections has-a hole 25 whichline *withthe holes -23- and- '24 and.- which-is tappedto --r eceive the- -setscrew 26. These-set-screws -2626 bearingagainso the-ends ofthe thrustrrod 22 rserve=to adjusttha spacing of the binder-sections- 4 to secure-sub stantial-paralleli-sm-of their -faces,- -17-"1 7 and insure fair bearings of sectionsand'electrodewone upon another, and firm clamping of the electrodes.

6 when the draw-bolt 5 is tightened.

The base-section 2 and the extension-sections 3 carry sockets 2'7 and 28, respectively, in which lie center rods 29. These center rods support the warp yarns under weight of the drop wires.

The outside support rods '30are shown in Figs. 1 and 2 asfiat bars with ro-unded edges. They are mounted on the binder-sections 4 by the set-screws 2626 which are made sufficiently long to receive said rods and the nuts 31-31 by which the rods 30 are secured. J

The base-section 2 can be variously'locatedin the assembly as shown diagramatically in Figs. 11 and 12. The importance of thisfeaturearises from conditions previously indicated. There. is

often little latitude permissible in the location of the post 11 with relation to the loom side 33.

Sometimes its distance from the edge of the loom.

side is less than the length of the assembled holder 32. In placing the electrodes in position in the holder it is necessary to slide them into position endwise as shown in Fig. 10.. The operative position of the holder 32 is shown by full lines at'C, in which position-the loom side 33 blocks the insertion of the electrodes 6. The holder-32 must be in the broken line position D in. which position it overlaps or projects, in the direction of the arrow e, past the position of the post 11. By having the-base-section 2 located as shown, the position D-is possible for the holder 32. Were the post 11 still nearer to the loom side 33 a difiere'nt location of the base-section Z-might be required as shown 7 iron 12 and relieve the strain that otherwise would be imposed upon the draw-bolt 5; Fig. 12.

It is in these long extended assemblies that the thrust rod is most important because'cumulative errors of dimensionaccrue to a larger-gross error than is the case of numerically smaller'aggreg'ations: In the case of holding two electrodes Where" only a base-section and twov binder-sections would complete the: assembly, nothrust rod would be needed, if either base-section or binder were thickened at the bottom to compensate for the thickness of the inserted electrodes clamped be tween theirtops'. r

' Fig. 3 shows a holder with a one piece thrust rod47 extending from binder-section 4 to bindersection 4, but with no provision for adjustment on thebinder-sections. e

Fig; 9 shows a sectional thrustro'd, the basesection 2 havinga short ro d-section 34 and the extension sections -3 havinglonger rod-sections 33-35. The binder-sections 36-36 carry setscrews 37 .37 same as the set-screws 2626-in Fig. 2; T The purpose of this arrangement to provide for merchandising and stocking unit-sect'ions, each with its thrust rod unit of a propriate length. Fig. 9 also shows a holder having bindersections :36 having sockets "to receive round outside rods or-lease rods 3838. A wall 39- forms the back of the socket, against which back the ends of the-lease rods abut. A U-shaped flange 40'forms the side-walls and bottom of the socket. Fig. 8 shows alternative means for clamping together'the sections of the holder to secure the electrodes. The draw-bolt 41, corresponding to 44 at the opposite end of the draw-bolt 41 serves to adjust the clamping tension and the cam lever 42 through co-action of'its cam surface 45 and the face 46 of thebinder-section 4 (shown, as are the other sect-ions, by broken lines), efiects the,

clamping. Y

Fig. 6. shows an alternative structure of the base-section 2 wherein the hub} 48, corresponding to the hub 9 of Fig.3, is split'and is clamped upon theangle iron 12 by'the bolt 49.

Fig. 7 showsanother alternativestructure for the base-section 2 for use where the holder is mounted in a slotted bracket 50 instead of on the angle iron 12. The hub 9 of Fig. 3 and hub 47 of Fig. 6, are replacedby a rectangular bracket 51. The'bolt 52 passing through the bracket 51 and the slotted bracket 50 serves tosecure the base-' section 2 'at any desired bracket '50.

Obviously other structural modifications and alternatives are available without departing from position along said the spirit or" my invention. Therefore, without I limiting myself to the precisestructures and arrangements'thereof described, I claim: a

1. In an electrode holder for warp stop motions,

the combination with a plurality of electrodes-to be-held,'of a-supp'orting member adapted'to be situateclbetween the electrodes of any appropriate pair, clamping-sections cooperating'with the supporting member to abut the sides of the electrodes; supporting means engaging said electrodes, which supporting means also serves to hold 'saidclzimp-f ing-sections to the supporting member and to clamp said electrodes between said member andsections," and meansto tighten said supporting and clamping-meansto clamp andhold the elec trodes and hold the sectionstothe supporting:

member;

2. In an electrode holder for warpstop'mo tions, the combination with a supporting section and annexed sections, each of said sections hav ing a draw-bolt hole and a thrust rod hole, of"

binder-sections between which are the aforesaid sections, the binder-sectionsfalso having each a hole for a draw-bolt, a draw-bolt extending between all the sections, a thrust rodext'e'ndingj through all-the sections but the binder-section s, adjustable means carried by 1 the binder-sections and abutting the thrustrod toadjust thespacjing of the binder sections, and means on the drawbolt to draw the binder-sections against the thrust rod to close all the sections toward each other to clamp whatever may be between said sectionsr 3. In a device for mounting the electrodesof' an electrical warp stop motion in a loomithe can. bination of a plurality of electrodes,;an arm trans versely disposedwith respect tothe d grades;

means to mount the arm-on the loom, an -;elec

trode-clamping section formed to receive fsaild f arm to mount it thereon, means tosecure the section in (:liffere'nt positions on saidarm, azplurality of other-'sect'ionsofsubstantially the-same form as the firstseptionQahd means independent of the securing means for the firstsection opera tive to alinesaid other sections with the'first'sec port the latter, means totighten" the draw boltto clampthe sections upon-the electrodes, a thrust" tionjand to clamp'allfth'e' sections togetherffto l secure'the electrodes in place between said sec- 5. In a holder for the electrodes and yarn supporting rods of an electrical stop motion, the com bination of a plurality of electrodes, a plurality of yarn-supporting rods, an arm extending transversely of the electrodes and yarn-supportingrods, means to mount the arm on the-loom, a plurality of electrode clamping sections disposed between the rods, one of said sections being formed for mounting it in different positions on said arm whereby to adjust the position of the entire holder, said section being variously positioned between the rods to vary the point of attachment of the holder with respect to said rods, means for securing the mounting section in adjusted position on said arm, means for clamping the sections against the electrodes to hold them in place, and means for mounting the yarn-supporting rods aforesaid.

6. In an electrode holder for electrical warp stop motions, the combination of a plurality of electrode clamping sections, one of said sections being formed to mount the holder for adjustment in the direction of the extent of the holder and being also formed to support additional sections to extend the capacity of the holder, the additional sections being mounted adjacent said first mentioned section which is variously positioned between the ends of the holder and with respect to the other sections, means for securing the firstnamed section to maintain the assembled holder in adjusted position, and further and independent means for securing the assembled sections together as a unit.

7. In an electrode holder for electrical warp stop motions, the combination of a plurality of electrode clamping sections, one of said sections being formed to adjustably mount the assembled holder on the loom and the other sections being mounted adjacent to the first-named section, means for supporting said other sections adjacent to the first-named section in different locations with respect thereto, and means independent of said last-named supporting means to adjust said assembled holder on the loom.

8. In an electrode holder for electrical warp stop motions, the combination with a plurality of electrodes, of a plurality of clamping sections arranged adjacent the electrodes abutting their opposite sides, each section formed with upper and lower openings extending transversely thereof, means extending through one set of openings to support the sections and clamp them against the sides of the electrodes, and longitudinally adjustable means extending through the other set of openings in the sections for locating their clamping faces in correct parallel relationship.

EDWIN C. SMITH. 

